i checked out a camaro that was in decent shape. 305 tpi with t5.
whats unusual was that the oil was milkshakey and the coolant was brown and gross. im guessing a blown head gasket but the car doesnt smoke at all and the exhaust doesnt smell unusual, it started and ran fine. it did sit for probably half a year. besides BHG i cant think of why the oil and coolant would be mixing

 

cracked block would also do it, but that isn't any better news than the head gasket.

 

Its possible the head gasket tore but only between an oil and coolant passage.

 

Brown coolant could just be old coolant thats about 2 years overdue for a change.

 

lets say it is just old crappy coolant. why would the oil on the dipstick look kinda milky

 

Hypothetically, the intake could be leaking at the coolant crossover passages and coolant is leaking into the crankcase. Either way, Id keep looking if you intend to buy a car with a motor you intend to use rather then swap out. Too risky just to guess.